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1. Based on the following data about sale counts for a market during 9 months (20) Sales Month 1 2 3 4 5 6 6

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1. Based on the following data about sale counts for a market during 9 months (20) Sales Month 1 2 3 4 5 6 6 3 5 5 15 18 a) Calculate the MAD and MAPE by exponential smoothing method (with w02 and forecast value for the first month equal to 5). b) Forecast sale for period 7

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